CN1392224A - Oil refining process of waste plastic and equipment - Google Patents
Oil refining process of waste plastic and equipment Download PDFInfo
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- CN1392224A CN1392224A CN 01113437 CN01113437A CN1392224A CN 1392224 A CN1392224 A CN 1392224A CN 01113437 CN01113437 CN 01113437 CN 01113437 A CN01113437 A CN 01113437A CN 1392224 A CN1392224 A CN 1392224A
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Abstract
The present invention relates to oil refining process and equipment with waste plastic. The main equipment includes preheating sand-eliminating reactor, HCl absorbro, cracking reactor with sludge eliminator, catalytic tower, fractionation twoer, condensator, oil-gas separator, oil-water separator and oil product storage tank arranged successively. The present invention has the features of capacity to treat different kinds of waste plastic, continuous production, utilization of side products and high oil yield.
Description
Oil refining process of waste plastic of the present invention and equipment relate to a kind of technology and equipment thereof of waste plastics recovery oil refining.Can effectively administer " white pollution ", be the method and apparatus that a kind of reclamation of solid wastes is handled.
Mainly there are 4 shortcomings in existing waste plastics recovery refining equipment, and (1) should not be used to handle igelite (PVC), because of PVC cracked byproduct hydrogen chloride (HCL) easily makes poisoning of catalyst, equipment is corrosive; (2) plastic waste need carry out pre-washing and oven dry before decomposing, and cost is higher, produces large amount of sewage; (3) reactor serialization charging and deslagging are also difficult; (4) the easy coking of reactor inwall has influenced the heat conductivity of still wall.Above shortcoming has caused existing installation to be difficult to scale operation, and oil yield rate and oil quality are low.
The objective of the invention is to: the oil refining process that a kind of refining equipment is provided and cooperates with it, thereby solve the defective that existing waste plastic oil-refining technology and equipment exist, expansion can be refined oil the kind of plastics, make equipment be suitable for handling PVC class plastics, whole plant can serialization production and slagging-off, and save the pre-treatment step that plastic waste cleans and dries, the by product of recycle reaction is as tail gas and heavy oil etc.
Purpose of the present invention can be achieved through the following technical solutions: the first step, adopt the pre-thermoprecipitation removal of impurity and chemistry dechlorination technology, promptly under the condition of normal pressure and plastics melt temperature (as 220 ℃), plastic waste is dropped into preheating desanding still, under periodically stirring and leave standstill, make impurity and plastic melt layering, impurity is discharged from preheating desanding still bottom, and the section H CL gas that generates in the plastics melting process is by HCL absorption unit chemical absorption; Second step, with plastic melt through the feed screw feeding to the scission reaction still, stir and scrape slag and carry out simultaneously, carry out thermo-cracking at high temperature more than 400 ℃, periodically discharge still bed coke slag, to guarantee carrying out continuously of heat scission reaction; In the 3rd step, the mixed oil and gas of hot cracked generation enters catalytic tower, in the lower floor of tower HCL chemical absorption bed is arranged, and further removes the HCL gas that the PVC plastics produce in the cracking still; In the catalyst bed of the upper strata of tower, carry out the catalytic reforming of mixed oil and gas; In the 4th step, the mixed oil and gas after the catalysis obtains gasoline product and diesel oil through fractionation, condensation, gas-oil separation, oily water separation; The 5th step, heavy oil, low molecular hydrocarbon class gas to be collected respectively, heavy oil is sent back to the heat scission reaction still and is repeated refining, and low molecular hydrocarbon class gas is admitted in the roasting kiln of heat scission reaction still and acts as a fuel.Utilize Processes and apparatus of the present invention, polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) and polystyrene analog thermoplastic waste or used plastics such as (PS) can be refined into 90
#Gasoline and 0
#Diesel oil, total oil yield rate reaches more than 80%.
The present invention includes heat scission reaction still 8, catalytic tower 12, gas-oil separation and condensing works, it is characterized in that: also comprise preheating desanding still 2, HCL absorption unit 5, the scission reaction still 8 that is equiped with deslagging device, fixed-bed catalytic tower 12, atmospheric fractional tower 14, condenser 15, oil-gas separator 16, water-and-oil separator 17, processed oil basin 18 successively.Adopt chemical absorption method to remove de-chlorine hydride, prevent that production unit is corroded, improve service life of equipment, make whole plant can be used to handle the PVC plastics.This complete equipment also can be used for the refining of discarded crude oil and heavy oil.
On the technique scheme basis, the fixed-bed catalytic tower is divided into two-layer, and lower floor is used for the chemical absorption bed that HCL absorbs, so that further remove hydrogenchloride, avoid poisoning of catalyst, the upper strata catalyzer is by composite the forming of clay mineral of efficient molecular sieve catalyzer and wide aperture silicoaluminate.
On the technique scheme basis, adopt chemical absorption method to remove HCL, avoid the corrosion of poisoning of catalyst and production unit, make whole plant can be used to handle the PVC plastics.
On the technique scheme basis, the scission reaction still adopts the screw feeder continuously feeding, stir with slag scraper and be designed to integral type, connect gusset on the stirring rake, fixedly the dreg scraper knife sheet prevents the inner wall of kettle coking, is convenient to the decoking of inner wall of kettle, spiral residue extraction machine automatic sludge discharge is arranged at the bottom of the still, guarantee serialization production.
On the technique scheme basis, separation column 14 bottoms are provided with one sedimentary heavy oil regularly are back to cracking still circulation cracked e Foerderanlage.Improve oil yield rate.
On the technique scheme basis, be provided with a reflux that evaporable short-chain hydrocarbons gas backstreaming to process furnace 11 is acted as a fuel and to utilize in the oil-gas separator 16.
Below describe in detail by drawings and Examples.
Accompanying drawing, present device structure and process flow diagram.
Embodiment:
As shown in drawings, a kind of waste plastic oil-refining equipment of the present invention, comprise heat scission reaction still 8, catalytic tower 12, gas-oil separation and condensing works, it is characterized in that: also comprise preheating desanding still 2, HCL absorption unit 5, the scission reaction still 8 that is equiped with deslagging device, fixed-bed catalytic tower 12, atmospheric fractional tower 14, condenser 15, oil-gas separator 16, water-and-oil separator 17, processed oil basin 18 successively.After waste or used plastics is collected, need not clean, simply remove bulk impurity such as sandstone, metal after, pour preheating desanding still 2 into by opening for feed 1, fusion under the temperature of normal pressure and 220 ℃.Preheating desanding still 2 is by the overheated machine oil heating in the chuck 3.Stirring rake 4 periodically stirs and leaves standstill in still, leave standstill the back open still at the bottom of electrical ball valve impurity is directly discharged.Open electrical ball valve and screw feeder 6 at last, make plastic melt flow into scission reaction still 8.Part chlorine in the igelite (PVC) evaporates with the form of hydrogenchloride, by hydrogen chloride absorption device 5 chemical absorption.The still temperature control of scission reaction still 8 more than 400 ℃, is carried out the heat scission reaction of plastics under whipped state, scission reaction still 8 is by 11 heating of burning stove.Be provided with in the still and stir dregs scraper 9, prevent that coking is hardened in the still, after a production cycle (as one day) is carried out in reaction continuously, utilize kettle 8 bottom spiral output machines 10 deslagginves.The mixed oil and gas that thermo-cracking produces enters fixed-bed catalytic tower 12, catalytic tower lower floor is a HCL chemical absorption bed, be used for and the scission reaction still in the HCL that produces of PVC plastics, the catalytic tower upper strata is a catalyst bed, be used for the catalytic pyrolysis mixed oil and gas, the catalytic pyrolysis temperature is utilized the overheated machine oil heating in the chuck 13 more than 300 ℃.Two catalytic towers 12 can be set, the using and the reserved, regeneration is used alternatingly in turn.Oil gas after the catalytic reforming enters separation column 14, at the lower gasoline fraction of fractionation overhead collection boiling point, reclaims the higher diesel oil distillate of boiling point in the middle and lower part of tower.Behind the reaction certain hour, a small amount of heavy oil can be accumulated in the separation column bottom, opens bottom valve, utilizes e Foerderanlage such as in-line pump that heavy oil is pumped into scission reaction still 8 and decomposes again.Diesel oil and gasoline enter processed oil basin 18 after passing through shell and tube cooler 15 condensations, oil-gas separator 16 and water-and-oil separator 17 separately, thereby obtain purified 90# gasoline and 0# diesel oil.Oil-gas separator 16 isolated short-chain hydrocarbons gases act as a fuel and get back to heating through reflux and act as a fuel in the stove 11 and utilized.
Claims (7)
1, a kind of oil refining process of waste plastic, it is characterized in that: the first step, adopt the pre-thermoprecipitation removal of impurity and chemistry dechlorination technology, promptly under normal pressure and plastics melt temperature, plastic waste is sent into preheating desanding still, through periodically stirring and leave standstill, make impurity and melts layering, impurity is discharged from desanding still bottom, and the section H CL gas that fused PVC plastics decomposite is by HCL absorption unit chemical absorption; Second step, plastic melt delivered to the scission reaction still after, stir and scrape Jiao and carry out simultaneously, carry out thermo-cracking at high temperature more than 400 ℃, after each production cycle finished, the cinder that scrapes was discharged at the bottom of still; In the 3rd step, the mixed oil and gas of hot cracked generation enters catalytic tower, and chemical absorber and the catalyzer of HCL is housed in the catalytic tower, absorbs the HCL gas of PVC plastics generation in the scission reaction still respectively and mixed oil and gas is carried out catalytic reforming; In the 4th step, the mixed oil and gas after the catalysis obtains gasoline product and diesel oil through fractionation, condensation, gas-oil separation, oily water separation; The 5th step, with pyrolysis byproducts---heavy oil and low molecular hydrocarbon class gas are collected respectively, and heavy oil is sent back to the heat scission reaction still and repeated refining, and low molecular hydrocarbon class gas is admitted in the roasting kiln of heat scission reaction still and acts as a fuel.
2, a kind of waste plastic oil-refining equipment, comprise heat scission reaction still (8), catalytic tower (12), gas-oil separation and condensing works, it is characterized in that: also comprise preheating desanding still (2), HCL absorption unit (5) successively, be equiped with scission reaction still (8), fixed-bed catalytic tower (12), atmospheric fractional tower (14), condenser (15), oil-gas separator (16), water-and-oil separator (17), the processed oil basin (18) of deslagging device.
3, according to the described waste plastic oil-refining equipment of claim 2, it is characterized in that: the absorption unit of removing HCL with chemical process is attached on the preheating desanding still.
4, according to the described waste plastic oil-refining equipment of claim 2, it is characterized in that: the fixed-bed catalytic tower divides two-layer, and lower floor is used for the chemical absorption bed that HCL absorbs, the upper strata is a catalyst bed, is equipped with by the composite catalyzer that forms of the clay mineral of efficient molecular sieve catalyzer and wide aperture silicoaluminate.
5, according to the described waste plastic oil-refining equipment of claim 2, it is characterized in that: the scission reaction still adopts the screw feeder continuously feeding.Deslagging device is designed to integral type for stirring with dreg scraper knife in the scission reaction still, connects gusset on the stirring rake with fixing dreg scraper knife sheet, is provided with the spiral residue extraction machine at the bottom of the still.
6, according to the described waste plastic oil-refining equipment of claim 2, it is characterized in that: separation column (14) bottom has one sedimentary heavy oil regularly is back to the e Foerderanlage of heat scission reaction still.
7, according to the described waste plastic oil-refining equipment of claim 2, it is characterized in that: have one in the oil-gas separator (16) the reflux of isolated short-chain hydrocarbons gas backstreaming to the process furnace (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113437 CN1392224A (en) | 2001-06-14 | 2001-06-14 | Oil refining process of waste plastic and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113437 CN1392224A (en) | 2001-06-14 | 2001-06-14 | Oil refining process of waste plastic and equipment |
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| CN1392224A true CN1392224A (en) | 2003-01-22 |
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ID=4660163
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|---|---|---|---|
| CN 01113437 Pending CN1392224A (en) | 2001-06-14 | 2001-06-14 | Oil refining process of waste plastic and equipment |
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Cited By (28)
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| CN100406856C (en) * | 2006-08-08 | 2008-07-30 | 寿焕根 | Automatic metering device for oil well three-phase flow |
| CN100406857C (en) * | 2006-08-08 | 2008-07-30 | 寿焕根 | Automatic metering device for oil, water and gas three-phase flow |
| US7692050B2 (en) | 2003-03-28 | 2010-04-06 | Ab-Cwt, Llc | Apparatus and process for separation of organic materials from attached insoluble solids, and conversion into useful products |
| US7771699B2 (en) | 2005-09-28 | 2010-08-10 | Ab-Cwt, Llc | Depolymerization process of conversion of organic and non-organic waste materials into useful products |
| CN101074385B (en) * | 2007-04-28 | 2010-09-15 | 牛斌 | Waste-plastic continuous cracking process and cracker |
| CN102002383A (en) * | 2010-11-04 | 2011-04-06 | 吴鹏锋 | Waste plastic oil refining system |
| CN102140358A (en) * | 2011-02-22 | 2011-08-03 | 唐山南光实业有限公司 | Progressive cracking evaporative type oil sand and oil sludge treatment device |
| CN102140360A (en) * | 2011-02-22 | 2011-08-03 | 唐山南光实业有限公司 | High-temperature steam jetting type oil sand and oil sludge treatment device |
| CN102140359A (en) * | 2011-02-22 | 2011-08-03 | 唐山南光实业有限公司 | Cracking evaporation type oil sand and oil sludge treatment device |
| CN102268275A (en) * | 2011-06-08 | 2011-12-07 | 清华大学 | Method and device for efficiently recycling all components of chlorine-containing plastic waste |
| CN102517062A (en) * | 2011-11-17 | 2012-06-27 | 东南大学 | Method for preparing hydrocarbon type oil and hydrochloric acid through pyrolytic-catalytic plastic and device |
| CN102634360A (en) * | 2012-05-02 | 2012-08-15 | 福建天科环保科技发展有限公司 | Process for processing synthetic leather leftovers by utilizing dry distillation technology |
| CN102703105A (en) * | 2012-04-20 | 2012-10-03 | 林柏辉 | Refining method of fuel oil by organic refuse |
| CN103203169A (en) * | 2013-03-28 | 2013-07-17 | 黄楚铭 | Continuous and zero-emission organic waste processing and recycling system |
| US8809606B2 (en) | 2003-03-28 | 2014-08-19 | Ab-Cwt Llc | Process for conversion of organic, waste, or low-value materials into useful products |
| US8877992B2 (en) | 2003-03-28 | 2014-11-04 | Ab-Cwt Llc | Methods and apparatus for converting waste materials into fuels and other useful products |
| CN105524636A (en) * | 2016-01-19 | 2016-04-27 | 青岛理工大学 | Technology for synchronously recycling plastics and performing harmless treatment on chromium slag |
| CN105583213A (en) * | 2015-12-29 | 2016-05-18 | 杨成志 | Method and special equipment for innocent treatment and energy utilization of rubbish plastic |
| CN105647556A (en) * | 2016-01-19 | 2016-06-08 | 青岛理工大学 | Technology for recycling plastic and making chromium slag harmless through waste heat of blast furnace slag |
| CN106190213A (en) * | 2015-04-30 | 2016-12-07 | 雷建光 | A kind of technique utilizing household refuse landfill sites waste or used plastics to extract gasoline, diesel |
| CN106867559A (en) * | 2017-04-28 | 2017-06-20 | 乔四洋 | A kind of multistage cracking quantity-produced oil refining method |
| CN107201244A (en) * | 2016-03-18 | 2017-09-26 | 华云新能源科技（深圳）有限公司 | Cracking waste plastics oil refining process and equipment |
| CN108410490A (en) * | 2018-03-23 | 2018-08-17 | 广东国能中林实业有限公司 | A kind of waste PVC pyrolysis processing technique and system |
| CN108503092A (en) * | 2018-05-29 | 2018-09-07 | 青岛德清源环保科技有限公司 | The final treatment techniques of cracking waste plastics fuel-firing gas-firing recycled water |
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-
2001
- 2001-06-14 CN CN 01113437 patent/CN1392224A/en active Pending
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| US8877992B2 (en) | 2003-03-28 | 2014-11-04 | Ab-Cwt Llc | Methods and apparatus for converting waste materials into fuels and other useful products |
| US8809606B2 (en) | 2003-03-28 | 2014-08-19 | Ab-Cwt Llc | Process for conversion of organic, waste, or low-value materials into useful products |
| US7771699B2 (en) | 2005-09-28 | 2010-08-10 | Ab-Cwt, Llc | Depolymerization process of conversion of organic and non-organic waste materials into useful products |
| CN100406857C (en) * | 2006-08-08 | 2008-07-30 | 寿焕根 | Automatic metering device for oil, water and gas three-phase flow |
| CN100406856C (en) * | 2006-08-08 | 2008-07-30 | 寿焕根 | Automatic metering device for oil well three-phase flow |
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| CN102002383A (en) * | 2010-11-04 | 2011-04-06 | 吴鹏锋 | Waste plastic oil refining system |
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| CN102140360A (en) * | 2011-02-22 | 2011-08-03 | 唐山南光实业有限公司 | High-temperature steam jetting type oil sand and oil sludge treatment device |
| CN102140358A (en) * | 2011-02-22 | 2011-08-03 | 唐山南光实业有限公司 | Progressive cracking evaporative type oil sand and oil sludge treatment device |
| CN102268275A (en) * | 2011-06-08 | 2011-12-07 | 清华大学 | Method and device for efficiently recycling all components of chlorine-containing plastic waste |
| CN102517062A (en) * | 2011-11-17 | 2012-06-27 | 东南大学 | Method for preparing hydrocarbon type oil and hydrochloric acid through pyrolytic-catalytic plastic and device |
| CN102517062B (en) * | 2011-11-17 | 2014-04-16 | 东南大学 | Method for preparing hydrocarbon type oil and hydrochloric acid through pyrolytic-catalytic plastic and device |
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| CN102634360A (en) * | 2012-05-02 | 2012-08-15 | 福建天科环保科技发展有限公司 | Process for processing synthetic leather leftovers by utilizing dry distillation technology |
| CN103203169A (en) * | 2013-03-28 | 2013-07-17 | 黄楚铭 | Continuous and zero-emission organic waste processing and recycling system |
| CN103203169B (en) * | 2013-03-28 | 2015-04-15 | 黄楚铭 | Continuous and zero-emission organic waste processing and recycling system |
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| CN105583213A (en) * | 2015-12-29 | 2016-05-18 | 杨成志 | Method and special equipment for innocent treatment and energy utilization of rubbish plastic |
| CN105647556B (en) * | 2016-01-19 | 2019-07-30 | 青岛理工大学 | It is a kind of using blast furnace slag waste heat recycling plastics and the simultaneous techniques of innoxious chromium slag |
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| CN107201244A (en) * | 2016-03-18 | 2017-09-26 | 华云新能源科技（深圳）有限公司 | Cracking waste plastics oil refining process and equipment |
| CN106867559A (en) * | 2017-04-28 | 2017-06-20 | 乔四洋 | A kind of multistage cracking quantity-produced oil refining method |
| CN106867559B (en) * | 2017-04-28 | 2018-10-12 | 乔四洋 | A kind of multistage cracking quantity-produced oil refining method |
| CN108410490A (en) * | 2018-03-23 | 2018-08-17 | 广东国能中林实业有限公司 | A kind of waste PVC pyrolysis processing technique and system |
| CN108410490B (en) * | 2018-03-23 | 2023-09-01 | 广东国能中林实业有限公司 | Chlorine-containing waste plastic pyrolysis treatment process and system |
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| CN110283617A (en) * | 2019-07-19 | 2019-09-27 | 广东省环境科学研究院 | A kind of high efficiency Waste plastic treatment apparatus and application method |
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